Rubber-coating machine.



' R. HOLMES.

' RUBBER COATING MACHINE.

APPLICATION FILED APR. 14, l9l6.

1,281,373. v Patented Oct. 15, 1918..

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///5 A TTOR/VEY ran snares r V UJEL RUDOLPH HOLMES, 0F DETROIT, MICHIGAN, ASSIGNOR T0 MDBGAN 8a "WRIGHT, A

' 'COR PORATION 0F IJZICHIGAN.

RUBBER-COATING MACHINE.

Specification of Letters Patent.

Patented @ct. 115, i928.

Application filed April 14,, 1916. Serial No. 90,997.

To all whom it may concern. Be it known that I, RUDOLPH HOLMES, a citizen of the United States, residing at Detroit, county of Wayne, and State of Michigan, have invented certain new and useful Improvements in Rubber-Coating Machines, of which the following is a full, clear, and exact description.

This invention relates to machines for coating materials. It is more particularly directed to calender-s for applying a skin coating of rubber to tire fabrics and the like. It-has been noted that as the coated fabric passes from the calender rolls it has a rough edge due to the fact that the coating which is usually of less width than the calender rolls tears away from the rubber remaining .on the extremities of these rolls. This rough edge is an objectionable feature and it is the object of my invention toprovide in such a machine an eificient device for removing the edge of the coatingsoon after the coated fabric emerges from the rolls.

For a detailed description of one form of my invention reference may be had to the following specification and to the accom-- panying drawing forming a part thereof, in which.

Figure 1 represents a rear perspective view of a portion of a skim-coating machine showing the cutter mounted at one edge of. the fabric, it being understood that the cutter may be duplicated on the opposite edge;

Fig. 2 is a section; on the 1ine22 of Fig. 3, showing the fabric and the inclination of the cutter thereto;

Fig. 3 is a fragmentary plan view taken with the two upper calender rolls removed and showing the inclination of the cutter to the longitudinal axis of the bottom roll.

In the drawing, the numeral 1 indicates the side of the frame of a calender upon which are mounted the heated rolls 2, 3 and coating on the fabric as it comes from the,

roll has a rough edge on either side as indicated by the numeral 6 in the drawing and the cutters are provided primarily for the removal of these rough portions.

As heretofore noted the cutter is duplicated at either edge of the fabric, the coating devices and their supports being identical but reversed, and a description of one will suflice for both. Each cutter comprises a frame 7 similar to the frame of a hack-saw. A thin wire 8 stretches between the side arms of the frame and lies substantially parallel to the back. Thecutter is adjustably inounted a short distance, four to six inches, from the nib of the rolls. It is supported by an angle iron mounted parallel to the side of the frame 1. and provided with spaced holes 9 for a bolt adapted to permit vertical ad- 3ust1nent of a bracketlO. Swiveled on the bracket is a standard llwhaving pivoted there to a tubular arm 12 rovided with a collar and set-screw 13 which adjustably hold a handle 14 passing therethrough and provlded with .an off-set end to which is attached the lateral. face of the back of the cutter frame.

According to this construction the cutter may be adjusted vertically through bracket l0and laterally through the adjustment permitted by the collar and set-screw 18. It may also be swung in a. ...orizontal plane through swiveled standard and in a Vertical plane through the pivots the arm 12 therewith. A

These adjustments are provided order that the cutter may rest firnily'against the edge of the fabric inorder to insure a A5 to 20 with respect to the longitudinal. axis of the calender-rolls, and approximately 10 to 15 with respect to the plane of the fabric emerging from the rolls. 1

Having thus described invention what I claim as new and desire to protect by Letters Patentisr 1. In a rubber coating machine, in combination, a set of skim-coating rolls adapted to provide a rubber-coated fabric having. a rough edge, and means adapted toremhve the said rough edge without removing the edge of the fabric, comprising a wire adapted to be set at an angle to the fabric and connection of having its longitudinal edge in contact with edge of the fabric, and supporting means the rough edge of the coat. for said putter adjustable to vary the angle 2. In a coating machine, in combination, and proximity of the cutter with respect to 10 a set of skim-coating rolls adapted to prosaid rolls. 1 5 vide a rubber-coated fabric having a rough Si ned at Detroit, Mich, this 4th day of 'edge, a cutter positioned to remove the rough Aprii, 1916. edgeof the coating Without removing the RUDOLPH HOLMES. 

